Cloth roll



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0 D Z d A. G. HENRY ETAL CLOTH ROLL Filed Sept. l2, 1939 l1 .'Il

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Patented May 26, 1942 OFFICE CLOTH ROLL Alexander G. Henry and Howard C. Rodgers,

Birmingham Ala.

Application September 12, 1939, Serial No. 294,554 3 Claims. (Cl. 15-230) This invention relates to cloth rolls such as are used for polishing and the like, it being particularly concerned with cloth rolls such as are used in tin plate branners.

Rolls of this character are made by compressing apertured cloth disks over a shaft, the disks being applied to the shaft in groups, under pressure. It is necessary to remove the pressure for each last positioned group during the application of successive groups to the shaft, and this pressure removal permits undesirable expansion of the group from which the pressure is removed. it being impossible to properly recompress this group by the pressure applied to the next group.

One of the objects of the present inventors is to retain the pressure on a group of such cloth disks, when they have once been applied to the shaft, during the time another group of the disks is being placed on the shaft.

Since the cloth disks present soft surfaces to the shaft mounting them, the roll, when completed, tends to lose its shape, the soft surfaces being unable to properly maintain the contour of the roll by bearing against the shaft.

Another object of the inventors is to provide a cloth roll constructed in such a manner that the shaft mounting the cloth disks works through rigid elements which prevent the roll from losing its contour forthe reasons just mentioned. .A specific example of the invention is illustrated by the accompanying drawing, in which: Figure 1 is a top view of a tin plate branner; Figure 2 is a side view; Figures 3 and 4 are front' and edge views, respectively, of a detail of importance;

Figure 5 shows a partially completed roll, and Figure 6 is an end view of Figure 5. More specifically, this drawing shows a tin plate branner consisting of a frame I mounting a plurality of cloth rolls 2 between which the tin plate passes, these cloth rolls being powered through a suitable gearing system by a motor 3 and serving to clean and dry the tin plate upon its emerging from a tinning machine in an oily condition. The machine is aided in this function by bran spread over the rolls 2 by means of bran spreading screws 4, and is, therefore, called a branning machine.

Each of the rolls 2 comprises a square mounting shaft 5 on which cloth disks are compressed in groups which are indicated by the numeral 6. In assembling the roll, the first group 6 is slid over the shaft 5 until it engages a collar 'l fixed to one of its ends. According to the invention,

ts the contour of the shaft 5 is then slid over this shaft onto the top of this rst group of cloth disks. Pressure is then applied to the group to compact it, the metal disk 8 canting upon the release of this pressure and gripping the shaft 5 so as to frictionally stay in place. In this manner pressure is kept on the group of cloth a metal disk 8 having a square opening 9 which 55 disks. The next group is then slid over the shaft 5 and another of the disks 8 placed on top of this group, this disk functioning in the same manner. The drawing illustrates the canting of one of these disks 8, at I0, it being understood that the cant is exaggerated for illustrative purposes and that the square hole 9 actually ts the shaft 5 rather tightly,

Each of the disks 8 is cut from cold rolled steel strip finished with a hard temper. Furthermore, each of the disks is substantially smaller in diameter than the diameter of the cloth disks with which it is associated and is oppositely punched at a plurality of points with a dull punch, this producing sharp projections Il which extend from the opposite surfaces of the disk. These projections stick into a few of the outermost ones of the cloth ldisks of each of the groups 6 on either side of the disks, and function to enable the transmission of stresses applied to the peripheries of the cloth disks to the shaft 5 by way of the stiff, relatively rigid, steel disks 8. Since the holes 9-in these disks t the contour of the shaft 5 relatively tightly, a cloth roll is produced which has in effect a hard center bearing on the shaft.

It will be appreciated from the foregoing that the present invention accomplishes -both of the inventors objects, namely, provision of a means for keeping pressure on thevarious groups of cloth disks as successive groups are positioned on the shaft and the provision of a cloth roll which maintains its contour when placed in service.

We claim:

1. A roll for cleaning, polishing and the like of the character made by compressing apertured cloth disks over a shaft, said disks being applied in groups under pressure and it being necessary to remove the pressure from each last positioned group during the application of successive groups to said shaft, said roll being characterized by having a metal disk with an opening tting the contour of said shaft appliedon the latter next to each of a series of said groups so as to cant and grip said shaft when said pressure is re- V'metaldisksbeim; made from com rolled steel iinished with a hard temper.

2. A roll for cleaning, polishing and the like of the character made by compressing apertured cloth disks over a shaft, said disks bein'g applied in groups under pressure and it being necessary ing made from cold rolled steel nished with a hard temper.

3. A method of assembling apertured limp and soft disks on a shaft under pressure to produce a long cleaning and polishing roll, said method comprising placing a group of said disks on said shaft, placing an apertured stiff and hard disk on said shaft next said group, applying pressure to said disks and said group to compress the latter compactly, canting said disk so it grips said shaft, lreleasing' 4said pressure, said disk holding pressure on said group, and successively repeating said steps until a roll of the length desired is assembled.

' ALEXANDER G. HENRY.

HOWARD C. RODGERS. 

